Hi everybody, I am new to this forum and I am hoping that I can get some help on my 95 xj6. The check engine light is on and I have pulled the codes to find a p1177 which is long term rich fueling. From what I have read, that could be a faulty fuel pressure regulator, clogged return line, bad injectors, possibly a vacuum leak. The car runs and idles fine. It starts on the first go cold or hot. The only thing that I am feeling is that the brakes are mushy, I don't know if that is directly related to the P1177. I have blown the return line and checked the fuel pressure regulator by putting a vacuum on it. It holds a vacum but I don't know if that is a sufficient way to check it.

Any help would be greatly appreciated.
Thanks